摘要

Perimyocarditis is an inflammation involving pericardium and myocardium with characterized widespread electrocardiography (ECG) ST-segment changes. However, with manifestations like chest discomfort, focal ST-segment elevation on ECG and elevated cardiac enzymes, it could be difficult to differentiate between perimyocarditis and ST-segment elevation myocardial infarction (STEMI). We here report a case of a 73-year-old male presenting atypical perimyocarditis with chest pain, focal ST elevation and increased cardiac markers, which led to emergency coronary angiography that was subsequently found to be normal. The following cardiac magnetic resonance (CMR) showed mild biventricular dysfunction and late gadolinium enhancement (LGE) imaging revealed contrast accumulation in subepicardial, intramyocardial and lateral wall areas. This case highlights that perimyocarditis may mimic myocardial infarction. Coronary angiographies and CMR are necessary to identify atypical perimyocarditis.

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